Tham txog yuav ua li cas xaiv hnub ci txoj kev teeb? Yuav ua li cas rau configure solar street lights?
Hauv qab no peb muab ib qho piv txwv tshwj xeeb
1. LED teeb, ib channel, 40W, 24V system;
2. Lub teeb pom kev zoo hauv zos txhua hnub yog xam ntawm 4h;
3. Lub sij hawm tso tawm txhua hnub yog 10 teev, (siv 7 teev-5 teev sawv ntxov ua piv txwv)
4. Sib ntsib 5 hnub los nag (ntxiv rau kev siv hluav taws xob hmo ua ntej los nag, 6 hnub). Tam sim no=40W ÷ 24V=1.67 A
Kev suav roj teeb = 1.67A × 10h × (5 + 1) hnub = 1.67A × 60h = 100 AH
Txuag 20% muaj peev xwm rau roj teeb them thiab tso tawm; Qhov tseeb tam sim no ntawm txoj kev teeb yog siab dua 2A (ntxiv rau 20%
Poob, suav nrog qhov chaw tam sim no, kab poob, thiab lwm yam)
Lub roj teeb ua haujlwm xav tau=100AH ntxiv rau 20% ntawm lub peev xwm tshwj xeeb, ntxiv rau 20% ntawm qhov poob. 100AH ÷ 80% × 120%=150AH
Lub roj teeb siv tau yog 24V / 150AH, thiab ob pawg ntawm 12V roj teeb yuav tsum: 300AH
Xam cov panels:
1. LED teeb 40W, tam sim no: 1.67A
2. Lub sij hawm tso tawm txhua hnub yog 10 teev (siv 7 teev-5 teev sawv ntxov ua piv txwv)
3. Khaws tsawg kawg 20% ntawm cov roj teeb lub rooj tsavxwm
4. Lub teeb pom kev zoo hauv zos yog xam raws li qhov nruab nrab txhua hnub 4h
WP÷17.4V=(1.67A × 10h × 120%) ÷ 4 h
PEB=87 W
Xyaum qhov poob tam sim no tsis tu ncua, kab poob thiab lwm yam kev poob ib ncig ntawm 20%
Roj teeb lub rooj tsavxwm xav tau=87W × 120%=104W
Lub tswv yim roj teeb lub rooj tsavxwm xav tau 24V / 104W, yog li ob lub roj teeb 12V yuav tsum muaj tag nrho: 208W
Nyob rau hauv no era ntawm kev chaos ntawm tus nqi, xaiv lub teeb yog tib yam li xaiv lub computer.
